One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) be...
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oai:doaj.org-article:9cb37ae1d4ba4b44be0e0a73dc3185872021-11-08T11:01:24ZOne-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery10.1186/s12951-021-01103-z1477-3155https://doaj.org/article/9cb37ae1d4ba4b44be0e0a73dc3185872021-11-01T00:00:00Zhttps://doi.org/10.1186/s12951-021-01103-zhttps://doaj.org/toc/1477-3155Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) between photosensitizer and photoresponsive group enables the use of long-wavelength light to activate short-wavelength light-responsive groups. However, such process requires oxygen-free environment to achieve efficient photolysis due to the oxygen quenching of triplet excited states. Results Herein, we report a strategy that uses red light to trigger disassembly of small-molecule nanoparticles by one-photon upconversion-like photolysis for cancer therapy. A photocleavable trigonal molecule, BTAEA, self-assembled into nanoparticles and enclosed photosensitizer, PtTPBP. Such nanoparticles protected TTET-based photolysis from oxygen quenching in normoxia aqueous solutions, resulting in efficient red light-triggered BTAEA cleavage, dissociation of nanoparticles and subsequent cargo release. With paclitaxel as the model drug, the red light-triggered drug release system demonstrated promising anti-tumor efficacy both in vitro and in vivo. Conclusions This study provides a practical reference for constructing photoresponsive nanocarriers based on the one-photon upconversion-like photolysis. Graphical AbstractKaiqi LongHan HanWeirong KangWen LvLang WangYufeng WangLiang GeWeiping WangBMCarticlePhotoresponsive drug deliverySelf-assemblyOne-photon upconversion-like photolysisCancer therapyThree-legged moleculesBiotechnologyTP248.13-248.65Medical technologyR855-855.5ENJournal of Nanobiotechnology, Vol 19, Iss 1, Pp 1-14 (2021) |
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DOAJ |
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EN |
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Photoresponsive drug delivery Self-assembly One-photon upconversion-like photolysis Cancer therapy Three-legged molecules Biotechnology TP248.13-248.65 Medical technology R855-855.5 |
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Photoresponsive drug delivery Self-assembly One-photon upconversion-like photolysis Cancer therapy Three-legged molecules Biotechnology TP248.13-248.65 Medical technology R855-855.5 Kaiqi Long Han Han Weirong Kang Wen Lv Lang Wang Yufeng Wang Liang Ge Weiping Wang One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
description |
Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) between photosensitizer and photoresponsive group enables the use of long-wavelength light to activate short-wavelength light-responsive groups. However, such process requires oxygen-free environment to achieve efficient photolysis due to the oxygen quenching of triplet excited states. Results Herein, we report a strategy that uses red light to trigger disassembly of small-molecule nanoparticles by one-photon upconversion-like photolysis for cancer therapy. A photocleavable trigonal molecule, BTAEA, self-assembled into nanoparticles and enclosed photosensitizer, PtTPBP. Such nanoparticles protected TTET-based photolysis from oxygen quenching in normoxia aqueous solutions, resulting in efficient red light-triggered BTAEA cleavage, dissociation of nanoparticles and subsequent cargo release. With paclitaxel as the model drug, the red light-triggered drug release system demonstrated promising anti-tumor efficacy both in vitro and in vivo. Conclusions This study provides a practical reference for constructing photoresponsive nanocarriers based on the one-photon upconversion-like photolysis. Graphical Abstract |
format |
article |
author |
Kaiqi Long Han Han Weirong Kang Wen Lv Lang Wang Yufeng Wang Liang Ge Weiping Wang |
author_facet |
Kaiqi Long Han Han Weirong Kang Wen Lv Lang Wang Yufeng Wang Liang Ge Weiping Wang |
author_sort |
Kaiqi Long |
title |
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
title_short |
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
title_full |
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
title_fullStr |
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
title_full_unstemmed |
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
title_sort |
one-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery |
publisher |
BMC |
publishDate |
2021 |
url |
https://doaj.org/article/9cb37ae1d4ba4b44be0e0a73dc318587 |
work_keys_str_mv |
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